Name some mob guys whos hit count was nowhere near the numbers the media wanted you to believe. These guys were nowhere nearly as dangerous as they were portrayed.
Harry "Pittsburgh Phil" Strauss is said to have killed at least 100 people, sometimes even several hundred, but imo it's exaggerated. There are similar rumors about the DeMeo crew, but I doubt it than Harry Strauss alone could have rivaled that whole group, no matter whether the number of the DeMeo murders was exaggerated a lot or not.
Willie Marfeo to Henry Tameleo:
1) "You people want a loaf of bread and you throw the crumbs back. Well, fuck you. I ain't closing down."
2) "Get out of here, old man. Go tell Raymond to go shit in his hat. We're not giving you anything."
Sicilian Mafia hitman Maurizio Avola was said to have killed 80 people. He was actually convicted for 43 murders, so we know he killed at least half of that number.